Brachial Plexus

Which terminal nerve of the brachial plexus has a sensory distribution of the fourth finger (medial portion) and fifth finger?

Which terminal nerve of the brachial plexus has a sensory distribution of the anterior lateral surface of forearm? (Hint: It is a motor nerve above the forearm)

Which terminal nerve of the brachial plexus innervates the triceps, aconeus, brachioradialis, supinator, (wrist and finger flexor and thumb extensor muscles posterior arm)?

Which terminal nerve of the brachial plexus innervates the pronator teres, flexor pollicis longus, flexor pollicis brevis, pronator quadratus ,(pronators, wrist and finger flexors on radial side, and most thumb muscles)?

1

11

10

9

8

7

You are observing Dr Gasser anaesthetise a patient prior to open rotator cuff repair surgery. She intends to perform a regional nerve block affecting the brachial plexus and asks you about the relevant anatomy.

Between which two muscles do the roots of the brachial plexus emerge?

Which terminal nerve of the brachial plexus has a sensory distribution of the fourth finger (medial portion) and fifth finger?

Which terminal nerve of the brachial plexus has a sensory distribution of the anterior lateral surface of forearm?

Which terminal nerve of the brachial plexus innervates the triceps, extensor carpi radialis longus, brachioradialis, extensor carpi radialis brevis, wrist and finger flexor and thumb extensor muscles?

Which terminal nerve of the brachial plexus innervates the deltoid and teres minor muscles?

What are the roots for the Axillary nerves?

What are the roots for the Radial and Median nerves?

Which nerve runs down middle of anterior arm and palm of hand (thumb,2,3 1/2 of 4th finger)?

Which nerve runs down antteromedial arm and primarily innervates fingers 4 and 5?

Which nerve runs down the posterior arm?

Teres minor is supplied by

Biceps brachi,brachialis,chorachobrachialis are supplied by